Unchanged workflow evidence
An unaffected dependency path can retain its evidence; approval does not reset all checks.
Platform / Assurance
Keep valid evidence. Reopen only what changed.
Steerlane links AI system components to assurance controls, evaluations and evidence. A semantic change can preserve one proof path while reopening another; unresolved mappings remain visible.
Pilot scope requires verification
Illustrative revalidation decision
The minimum defensible revalidation set.
Explore how candidate changes affect distinct control/evidence paths. The authored values are not current customer test results and cannot replace a real dependency assessment.
STEERLANE / ASSURANCE DELTA / AUTHORED SYNTHETIC EVIDENCE
02 / Minimum revalidation proposal
Retain proof by dependency, not convenience.
Filter illustrative evidence consequences and inspect why each previous result is retained, reopened or unresolved.
PRESERVE1
REVALIDATE3
UNKNOWN1
Evidence decision context
REVALIDATEPrimary model revision
- Control
- Model quality threshold
- Previous evidence
- Earlier benchmark bound to the approved model configuration
- Minimum next action
- Rerun the relevant quality benchmark on the candidate model
- Review owner (illustrative)
- Evaluation owner + governance reviewer
Model revision invalidates reliance on its previous quality result. The rest of the system does not automatically become stale.
Counts describe five authored examples, not a customer evaluation or measured reduction in audit effort. Retention remains subject to real dependency and evidence verification; no automatic approval occurs.
Evidence validity needs a reason.
These categories summarize the single-system assurance concept; statuses are examples, not a live run.
Model quality evaluation
The candidate model differs from the approved state.
Permission verification
Effective data authority may have expanded.
New document tool
The tool lacks an approved assurance dependency mapping.
From impact reasoning to the next required action.
Follow the candidate into evidence revalidation and review, without an automatic approval action.
STEERLANE / CREDIT REVIEW ASSISTANT / SYNTHETIC PRODUCT EXAMPLE
System assurance walkthrough
Credit Review Assistant
Baseline v2 compared with candidate v3
Stage 1 of 4: Approved state
Approval creates a reference state.
An approved baseline is distinct from a proposed candidate. The decision has its own review and evidence history.
Approved baseline
v2
Approved reference
Historical decision and bound evidence remain separate from candidate work.
Proposed candidate
v3
Review required
The changed version is not approved merely because it can be evaluated.
Illustrative authored fixture · not live product output or actual approval
Trace an individual cause in the interactive proof path explorer.
Start with a real approval problem.
We scope pilots to capabilities verified in the product at the time of evaluation, not the entire future roadmap.